It’s Rhino 6 expired evaluation. Here is the system information:
Rhino 6 SR25 2020-4-23 (Rhino 6, 6.25.20114.05271, Git hash:master @ f35d7ded15ec317635ced435d8df84327397038d)
License type: Evaluation, build 2020-04-23
License details: Stand-Alone
Expires on: 2020-05-28
Windows 10.0 SR0.0 or greater (Physical RAM: 7.8Gb)
Machine name: DESKTOP-MIS7AN1
Hybrid graphics system.
Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 3-9-2020 (M-D-Y).
Primary OpenGL: NVIDIA GeForce GTX 1050 (NVidia) Memory: 4GB, Driver date: 3-17-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 445.75
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 3-17-2020
Driver Version: 26.21.14.4575
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB
Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.25.20114.5271
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.25.20114.5271
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.25.20114.5271
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.25.20114.5271
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
I also noticed something weird. When I enter a distance for the length of the extrusion (the example below used 15 degrees angle), lets say 30 mm, the preview shows 31 mm in one directions, and 29 mm if I flip the directions. No matter what’s the number, it’s always +1 or +1 depending on the direction. The mouse tooltip itself shows 30 mm in both scenarios. Is that a bug or something wrong on my Rhino? The command ends and won’t build an extrusion as I get the error. However, if I extrude from a curve in the same position as the surface edge, it works.
I just updated my Windows and will download the latest drivers for everything, but I doubt that that’s the case. I have an old 3D connexion driver for SpacePilot discontinued device that does not work with newer Rhino 6. I will also uninstall it to check if it helps.